//------------------------------------------------------------------------------
//  此代码版权（除特别声明或在XREF结尾的命名空间的代码）归作者本人若汝棋茗所有
//  源代码使用协议遵循本仓库的开源协议及附加协议，若本仓库没有设置，则按MIT开源协议授权
//  CSDN博客：https://blog.csdn.net/qq_40374647
//  哔哩哔哩视频：https://space.bilibili.com/94253567
//  Gitee源代码仓库：https://gitee.com/RRQM_Home
//  Github源代码仓库：https://github.com/RRQM
//  API首页：https://touchsocket.net/
//  交流QQ群：234762506
//  感谢您的下载和使用
//------------------------------------------------------------------------------

using System;
using System.Collections.Specialized;

namespace TouchSocket.Http;

/// <summary>
/// 表单文件
/// </summary>
public interface IFormFile
{
    /// <summary>
    /// 获取Content-Disposition
    /// </summary>
    string ContentDisposition { get; }

    /// <summary>
    /// 获取Content-Type
    /// </summary>
    string ContentType { get; }

    /// <summary>
    /// 实际的数据
    /// </summary>
    ReadOnlyMemory<byte> Data { get; }

    /// <summary>
    /// 数据对
    /// </summary>
    NameValueCollection DataPair { get; }

    /// <summary>
    /// 获取file name
    /// </summary>
    string FileName { get; }

    /// <summary>
    /// 文件长度。在数据接收完成之前，该值为-1;
    /// </summary>
    long Length { get; }

    /// <summary>
    ///  获取name字段
    /// </summary>
    string Name { get; }

    ///// <summary>
    ///// 读取文件数据  //太麻烦先不实现
    ///// </summary>
    //public int Read(byte[] buffer, int offset, int count);
}

internal class InternalFormFile : IFormFile
{
    public string ContentDisposition => this.DataPair["Content-Disposition"];

    public string ContentType => this.DataPair["Content-Type"];

    public ReadOnlyMemory<byte> Data { get; set; }
    public NameValueCollection DataPair { get; set; }
    public string FileName => this.DataPair["filename"];
    public long Length => this.Data.IsEmpty ? 0 : this.Data.Length;

    public string Name => this.DataPair["name"];
    //public int Read(byte[] buffer, int offset, int count)
    //{
    //    return this.ReadAction(buffer, offset, count);
    //}

    //public Func<byte[], int, int, int> ReadAction { get; set; }
}